Boulder Hill is a city located in Illinois. Boulder Hill has a 2020 population of 10,262. Boulder Hill is currently declining at a rate of 0.00% annually and its population has increased by 26.57% since the most recent census, which recorded a population of 8,108 in 2010. Boulder Hill reached it's highest population of 10,262 in 2019.
The average household income in Boulder Hill is $75,800 with a poverty rate of 6.92%. The median rental costs in recent years comes to $1,588 per month, and the median house value is $161,400. The median age in Boulder Hill is 33.6 years, 31.5 years for males, and 35.4 years for females.